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タイトル	ja 面積あたり自給飼料由来乳量の規定要因と意義 : 北海道酪農を対象に en What can be deduced from a debate on self-supplied forage milk yield per unit of land area?
作成者	ja 小林, 国之 en Kobayashi, Kuniyuki NRID 1000010451410
アクセス権	open access
主題	NDC 611
内容注記	Abstract en The purpose of this study is to calculate the self-supplied forage milk yield-necessary to promote dairy management based on self-supplied forage - from actual survey data, and to study the self-supplied forage milk yield per unit of land area, which is equivalent to land productivity. The self-supplied forage milk yields of eight dairy farmers in Hokkaido were calculated and used to categorize the farmers into three groups according to type of management: (i) dairy management which achieved high self-supplied forage milk yield through efficient use of self-supplied forage; (ii) dairy management which produced average self-supplied forage milk yield but high milk yield per delivered cow(i.e. a cow that has calved at least once) through use of purchased feed concentrates in addition to self-supplied forage; and (iii) dairy management which only produced low milk yield from self-supplied forage. Land is the most fundamental farming resource. In light of this, it is necessary to maximize the use of farmland by shifting to farm management based on self-supplied forage, which is resilient to changes in the external environment and therefore stable. To make this shift possible, efficient land use will be a priority management goal, of which self-supplied forage milk yield is a useful indicator. The case study also revealed that the self-supplied forage milk yield per unit of land area considered adequate for the management of individual dairy farmers differs from the maximum self-supplied forage milk yield that can be produced from land. Individual farmers do not experience management problems if they can earn large incomes even where their self-supplied forage milk yield per unit of land area is low.However, the fact that some farmers within a district experience self-supplied forage shortages and need to purchase feed shows the importance of improving the efficiency of the use of land, a common local resource, beyond individual farm management
出版者	ja 北海道農業経済学会
日付	Issued2016-04-30
言語	jpn
資源タイプ	journal article
出版タイプ	VoR
資源識別子	HDL http://hdl.handle.net/2115/66087
収録誌情報	PISSN 2185-1220 NCID AA12489661 ja フロンティア農業経済研究 巻19 号1 開始ページ1 終了ページ16
ファイル	fulltext 19-1-2_kobayashi.pdf 2.99 MB (application/pdf) Issued2016-04-30
コンテンツ更新日時	2023-07-26